68 year old female here. Got 2nd shot of Pfizer yesterday. Same with me. Not much of a sore arm even. I was told by friends to make sure I was well hydrated. Don’t know if there is a correlation but I had no side affects going 36 hours into full vaccination.
My Mom drank plenty of water AFTER the shot..LOL she made me google to see if drinking too much fluid can make the vaccine get pissed away I told her uh, NO..she was surprised she had no side effects so she thought maybe she peed it out..I dont think that is possible